These sealing tapes are designed for use with Syntho-Glass woven fiberglass repair cloth.

Designed to stop leaks in pipes that can not have the pressure shut down. This strong and versatile roll of rubber tape can stop a leak at up to 60psi. Capable of sealing pipes of varying diameters, the special rubber tape comes in different sizes to match different size pipes.
A butyl patch is fused into one end of the rubber tape allowing it to stick to the pipe while it is under pressure. Once wrapping has begun, continue to wrap directly over the hole so that the rubber tape pushes back onto itself. This method will ensure that the rubber tape consistently applies greater and greater pressure to the butyl patch, thus sealing the leak.
Uses include:
Available in a variety of roll sizes.

A high performance easy to use joint sealing tape, which is a blend of butyl rubber, fire retardant fillers, and selected adhesion promoters for maximum bond.
Designed to repair leaks on any surface, which when over wrapped with Syntho-Glass forms a permanent and effective repair product.
The butyl tape is used by removing the adhesive backing and applying directly over the hole using enough pressure to make sure the butyl-tape is making contact with the repair area.
Uses include:
Available in a variety of roll sizes.